“CCleaner is a freeware system optimization, privacy and cleaning tool.” Basically CCleaner deletes traces of your online activities like cookies, browsing history and temporary internet files.
It also features a registry cleaner which cleans and optimizes your registry. Additionally you can uninstall any program from CCleaner.
The best part is it’s free. There’s no spyware/malware and performs a great service for your computer.
Beerslugger.com recommends CCleaner